Location
London

Hours
Full Time

Salary
Negotiable

About the Role
The London Stock Exchange Group (LSEG) is seeking an experienced, dedicated, and driven Senior Attack Monitoring Analyst to join the Global Security Operations Centre (GSOC) team. As part of LSEG Security Operations, you will play a critical role in continuously monitoring and responding to cyber security incidents using people, process, and technology. This senior role involves identifying and responding to cyber security incidents, improving the defensive capabilities of the GSOC, and staying ahead of evolving threats. You will triage security events, operate SIEM tools such as Splunk, QRadar, or LogRhythm, and develop monitoring dashboards and run books. You will utilise playbooks and threat intelligence resources to guide incident response and enhance the SOC’s detection capabilities. Staying up to date with current vulnerabilities, attacks, and countermeasures is essential. This role requires a methodical approach to incident handling, root cause identification, and remediation of cyber events in a fast-paced environment.

Experience
- Proven experience operating or administrating SIEM platforms (e.g., Splunk, QRadar, LogRhythm).
- Solid understanding of network fundamentals including the TCP/IP stack, typical organisational architectures, and common protocols targeted by malware.
- Skilled in security event analysis, triage, incident handling, and root-cause investigation.
- Knowledge of attacker tools, techniques, and procedures, ideally from direct experience.
- Experience in cyber security within academic or corporate environments.
- Ability to work calmly under pressure in a fast-paced, demanding environment.
- Strong verbal and written communication and collaboration skills.

About you
You are a technically proficient and motivated individual with a passion for cyber security. You thrive in a collaborative and creative culture, eager to contribute new ideas and continuously improve security operations. You value integrity, partnership, excellence, and change, aligning with LSEG’s core values. You are committed to sustainability and social responsibility and appreciate working in a diverse and inclusive environment.

Qualifications
- Relevant security industry certifications such as OSCP, GIAC, CCNA.
- Certification demonstrating SIEM operational competence.
- Proficiency in one or more programming languages (e.g., Python, PowerShell, Java, C#).